Dust removal device for overflow of pre-reduced pellet coke powder

Abstract

The utility model relates to the technical field of mechanical engineering, and discloses a dust removal device for overflow of pre-reduced pellet coke powder, which comprises a stock bin, a fence is arranged on the outer side of the stock bin, a bag-type dust remover body is arranged on the rear side of the fence, a filter bag is mounted in the bag-type dust remover body, and the filter bag is arranged in the stock bin. The left side of the bag-type dust remover body communicates with a fan, the left side of the fan fixedly communicates with a dust inlet pipe, a dust removal pipeline is arranged on the outer side of the dust inlet pipe, a mounting assembly is arranged on the dust removal pipeline, the end, away from the dust inlet pipe, of the dust removal pipeline fixedly communicates with the rear side of a stock bin, and a dust removal valve is arranged on the dust removal pipeline. And a control assembly is arranged in the dust removal valve. According to the utility model, production of two furnaces is met by adding 30 thousands of dust removal devices, one stock bin is connected with one dust removal pipeline, and a dust removal valve interlocking device is mounted, so that the dust removal effect is maximized.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to a dust removal device for the overflow of pre-reduced pellet coke powder. Background Technology

[0002] In today's era of rapid development in the steel smelting and related ore processing industries, the pre-reduction pellet production process has been widely and deeply applied in the industry due to its significant advantages, and has become a core key link in improving the quality and efficiency of steel production.

[0003] However, the pre-reduced pellets contain coke powder, which makes the pellet production process characterized by high temperature, intense fire, and a lot of dust. The high temperature and intense fire pose a great threat to the relevant equipment. The equipment is frequently subjected to high temperatures and is prone to damage such as burning and deformation, which seriously shortens the service life of the equipment and increases the cost of equipment maintenance and replacement. At the same time, a large amount of dust is scattered everywhere, causing workers to be in a harsh working environment for a long time. This not only seriously affects the operator's vision, but also causes great harm to the workers' respiratory system and other physical health.

[0004] Therefore, a dust removal device for the overflow of pre-reduced pellet coke powder is provided to solve the problems mentioned in the background art. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a dust removal device for the overflow of coke powder from pre-reduced pellets, aiming to improve the problems in the prior art where pre-reduced pellets contain coke powder, the pellet temperature is high, the fire is large and there is a lot of dust, the equipment is easily burned, and the working environment of the workers is poor.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dust removal device for the overflow of pre-reduced pellet coke powder, comprising a silo, an enclosure provided on the outside of the silo, a bag filter body provided on the rear side of the enclosure, filter bags installed inside the bag filter body, a fan connected to the left side of the bag filter body, a dust inlet pipe fixedly connected to the left side of the fan, a dust removal pipe provided on the outside of the dust inlet pipe, an installation component provided on the dust removal pipe, a dust removal valve provided on the dust removal pipe, and a control component provided inside the dust removal valve.

[0007] Furthermore, the mounting assembly includes a flange one, the end of the flange one being away from the hopper, and a flange two being fixedly mounted on the outside of the dust removal pipe. Mounting bolts are provided inside the flange one and the flange two, and nuts are provided on the mounting bolts.

[0008] Furthermore, the control component includes a valve stem disposed on the dust removal valve. A butterfly plate is fixedly connected to the lower side of the valve stem, a gear is fixedly connected to the upper side of the valve stem, a toothed plate is disposed on the rear side of the gear, a fixing plate is mounted on the dust removal valve, and a cylinder is mounted on the fixing plate. The telescopic end of the cylinder is fixedly connected to the right side of the toothed plate.

[0009] Furthermore, the toothed plate is meshed with a gear.

[0010] Furthermore, a control box is provided at the rear of the hopper, and the control box is electrically connected to the cylinder and the blower.

[0011] Furthermore, the nut is threaded onto the mounting bolt.

[0012] Furthermore, the valve stem is rotatably connected inside the dust removal valve.

[0013] Furthermore, the filter bags are evenly distributed in the airflow channels within the baghouse dust collector body.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, a dust collector consisting of a bag filter, filter bags, and a fan is assembled to form a 300,000-ton dust removal device, which has an excellent ability to handle a large amount of dust-laden gas. It is sufficient to meet the production needs of two furnaces at the same time, ensuring that the generated coke dust is collected and filtered in a timely and sufficient manner. Through the efficient filtration system, it can accurately intercept fine coke particles, so that the discharged gas meets strict environmental protection standards and effectively reduces pollution to the surrounding environment.

[0016] 2. In this utility model, the valve stem and butterfly plate are driven to rotate by the cylinder, gear and toothed plate to form a dust removal valve interlocking device, realizing intelligent linkage between equipment. When there is a risk of coke powder overflow in the silo or when it is in production, the interlocking device can automatically control the opening and closing of the dust removal valve according to the preset program. Attached Figure Description

[0017] Figure 1 This is a perspective view of a dust removal device for the overflow of pre-reduced pellet coke powder according to the present invention;

[0018] Figure 2 This is a top view of a dust removal device for the overflow of pre-reduced pellet coke powder proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the installation components of a dust removal device for the overflow of pre-reduced pellet coke powder proposed in this utility model.

[0020] Figure 4This is a schematic diagram of a control component for the overflow of pre-reduced pellet coke powder proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of a filter bag structure for the overflow of pre-reduced pellet coke powder proposed in this utility model.

[0022] Legend:

[0023] 1. Material hopper; 2. Enclosure; 3. Baghouse dust collector body; 4. Fan; 5. Dust inlet pipe; 6. Dust collection pipeline; 7. Filter bag; 8. Mounting components; 81. Flange 1; 82. Flange 2; 83. Mounting bolts; 84. Nuts; 9. Control components; 91. Cylinder; 92. Gear; 93. Gear plate; 94. Valve stem; 95. Butterfly plate; 96. Fixing plate; 10. Dust collection valve; 11. Control box. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 , Figure 2 and Figure 5 An embodiment of this utility model provides a dust removal device for the overflow of pre-reduced pellet coke powder, including a silo 1, a baffle 2 is provided on the outside of the silo 1, a bag filter body 3 is provided on the rear side of the baffle 2, filter bags 7 are installed inside the bag filter body 3, the filter bags 7 are evenly distributed on the airflow channel inside the bag filter body 3, a fan 4 is connected to the left side of the bag filter body 3, a dust inlet pipe 5 is fixedly connected to the left side of the fan 4, a dust removal pipe 6 is provided on the outside of the dust inlet pipe 5, an installation component 8 is provided on the dust removal pipe 6, the end of the dust removal pipe 6 away from the dust inlet pipe 5 is fixedly connected to the rear side of the silo 1, a dust removal valve 10 is provided on the dust removal pipe 6, and a control component 9 is provided inside the dust removal valve 10;

[0026] When pre-reduced pellet coke powder overflows from silo 1, the enclosure 2 can initially block the spread of dust, concentrating the dust that might otherwise be scattered in all directions within the area enclosed by the enclosure 2. When the fan 4 is started, the dust-laden gas enters the bag filter body 3 through the dust inlet pipe 5 and flows along its internal airflow channel. During this process, the gas will inevitably pass through the filter bags 7, which are evenly distributed on the airflow channel. The filter bags 7 have numerous tiny pores. When the dust-laden gas passes through the filter bags 7, the dust particles are effectively intercepted and gradually adhere to the outer surface of the filter bags 7. The purified gas after being filtered by the filter bags 7 will then pass through the filter bags 7 and be discharged from the outlet of the bag filter body 3, thus achieving effective separation of dust and gas.

[0027] Reference Figure 1 and Figure 3 The mounting assembly 8 includes a flange 81, one end of which is away from the hopper 1. A flange 82 is fixedly installed on the outside of the dust removal pipe 6. Mounting bolts 83 are provided inside the flanges 81 and 82. Nuts 84 are provided on the mounting bolts 83. Nuts 84 are threaded onto the mounting bolts 83.

[0028] When it is necessary to install or disassemble the dust removal pipe 6, the mounting bolts 83 are passed through the corresponding holes on flange 1 81 and flange 2 82, and then the nuts 84 are tightened to prevent the dust-laden gas from leaking at the connection and to facilitate subsequent disassembly and reinstallation.

[0029] Reference Figure 1 , Figure 2 and Figure 4 The control component 9 includes a valve stem 94, which is disposed on the dust removal valve 10. A butterfly plate 95 is fixedly connected to the lower side of the valve stem 94, and a gear 92 is fixedly connected to the upper side of the valve stem 94. A toothed plate 93 is disposed on the rear side of the gear 92. A fixing plate 96 is installed on the dust removal valve 10, and a cylinder 91 is installed on the fixing plate 96. The telescopic end of the cylinder 91 is fixedly connected to the right side of the toothed plate 93. The toothed plate 93 is meshed with the gear 92. A control box 11 is disposed on the rear side of the hopper 1. The control box 11 is electrically connected to the cylinder 91 and the fan 4. The valve stem 94 is rotatably connected inside the dust removal valve 10.

[0030] When the fan 4 needs to be started for dust removal, the control box 11 will send an electrical signal to the cylinder 91 according to the preset program. After receiving the signal, the extension end of the cylinder 91 will start to move, driving the toothed plate 93 connected to it to move. Since the toothed plate 93 and the gear 92 are in a meshing connection, the movement of the toothed plate 93 will drive the gear 92 to rotate. The valve stem 94, which is fixedly connected to the gear 92, will also rotate with the rotation of the gear 92, thereby driving the butterfly plate 95 of the valve stem 94 to rotate synchronously. This will cause the dust removal valve 10, which was originally in a closed state, to gradually open. In this way, the dust-laden gas concentrated by the enclosure 2 will have a passage and can smoothly enter the bag filter body 3.

[0031] Working principle: When this device is used, if the pre-reduced pellet coke powder overflows from the silo 1, the enclosure 2 set outside the silo 1 initially blocks the dust diffusion, concentrating the dust in the area enclosed by the enclosure 2. When it is necessary to start the fan 4, the control box 11 sends an electrical signal to the cylinder 91. The extension end of the cylinder 91 drives the toothed plate 93 to move. Because the toothed plate 93 meshes with the gear 92, the gear 92 rotates, which in turn drives the valve stem 94 to rotate. The butterfly plate 95, which is fixedly connected to the outside of the valve stem 94, rotates accordingly, opening the dust removal valve 10, allowing the dust-laden gas to enter the bag filter body 3. After the dust-laden gas enters the bag filter body 3 through the dust inlet pipe 5, it passes through the filter bags 7 evenly distributed in its internal airflow channels. The fine pores of the filter bags 7 intercept the dust particles, causing them to adhere to the outer surface of the filter bags 7. The purified gas passes through the filter bags 7 and is discharged from the outlet of the bag filter body 3, thus achieving the separation of dust and gas. The flange 81 of the dust removal pipe 6 and the flange 82 of the dust inlet pipe 5 can be connected by mounting bolts 83 through their corresponding holes and tightened with nuts 84 to ensure the connection is sealed and to facilitate disassembly and reinstallation when maintaining, repairing or replacing parts of the equipment.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust removal device for the overflow of pre-reduced pellet coke powder, comprising a silo (1), characterized in that: The outer side of the silo (1) is provided with a fence (2), and the rear side of the fence (2) is provided with a bag filter body (3). The bag filter body (3) is equipped with a filter bag (7). The left side of the bag filter body (3) is connected to a fan (4). The left side of the fan (4) is fixedly connected to a dust inlet pipe (5). The outer side of the dust inlet pipe (5) is provided with a dust removal pipe (6). The dust removal pipe (6) is provided with an installation component (8). The end of the dust removal pipe (6) away from the dust inlet pipe (5) is fixedly connected to the rear side of the silo (1). The dust removal pipe (6) is provided with a dust removal valve (10). The dust removal valve (10) is provided with a control component (9).

2. The dust removal device for the overflow of pre-reduced pellet coke powder according to claim 1, characterized in that: The mounting assembly (8) includes a flange one (81) at one end away from the silo (1), and a flange two (82) fixedly installed on the outside of the dust removal pipe (6). Mounting bolts (83) are provided inside the flange one (81) and the flange two (82), and nuts (84) are provided on the mounting bolts (83).

3. The dust removal device for the overflow of pre-reduced pellet coke powder according to claim 1, characterized in that: The control component (9) includes a valve stem (94), which is disposed on the dust removal valve (10). A butterfly plate (95) is fixedly connected to the lower side of the valve stem (94), and a gear (92) is fixedly connected to the upper side of the valve stem (94). A toothed plate (93) is disposed on the rear side of the gear (92). A fixing plate (96) is installed on the dust removal valve (10), and a cylinder (91) is installed on the fixing plate (96). The telescopic end of the cylinder (91) is fixedly connected to the right side of the toothed plate (93).

4. A dust removal device for the overflow of pre-reduced pellet coke powder according to claim 3, characterized in that: The toothed plate (93) is meshed with the gear (92).

5. A dust removal device for the overflow of pre-reduced pellet coke powder according to claim 1, characterized in that: A control box (11) is provided on the rear side of the hopper (1), and the control box (11) is electrically connected to the cylinder (91) and the blower (4).

6. A dust removal device for the overflow of pre-reduced pellet coke powder according to claim 2, characterized in that: The nut (84) is threaded onto the mounting bolt (83).

7. A dust removal device for the overflow of pre-reduced pellet coke powder according to claim 3, characterized in that: The valve stem (94) is rotatably connected inside the dust removal valve (10).

8. A dust removal device for the overflow of pre-reduced pellet coke powder according to claim 1, characterized in that: The filter bags (7) are evenly distributed in the airflow channels inside the bag filter body (3).

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